Drawing straight lines in JavaScript
- by Shawn31313
I'm just trying to draw a line with JavaScript.
I would like it to be like this: http://deepliquid.com/projects/blog/arrows2.html
My version: http://jsfiddle.net/shawn31313/qsWML/5/show
Doesn't work too well and I don't know how to get it too work. It must be an issue in my JavaScript.
This my code:
$(document).ready(function() {
var dragStatus = 2,
getPos, giveRandomID;
$(document).mousedown(function(event) {
dragStatus = 0;
getPos = {
top: event.clientY,
left: event.clientX
};
giveRandomID = Math.floor(Math.random() * 99999);
});
$(document).mousemove(function() {
var line = $('#line' + giveRandomID);
if (dragStatus == 0) {
$('body').append("<div id='line" + giveRandomID + "' style='position:absolute;top:" + getPos.top + "px;left:" + getPos.left + "px;background:black;width:2px;height:5px'></div>");
dragStatus = 1;
}
if (dragStatus == 1) {
if (event.clientX > getPos.left) {
line.css({
left: getPos.left,
width: event.clientX - getPos.left
});
} else {
line.css({
left: event.clientX,
width: getPos.left - event.clientX
});
}
if (event.clientY > getPos.top) {
line.css({
top: getPos.top - Math.abs((event.clientY - getPos.top) * 2),
'-webkit-transform': 'rotate(' + (event.clientY - getPos.top) + 'deg)'
});
} else {
line.css({
top: getPos.top + Math.abs((getPos.top - event.clientY) * 2),
'-webkit-transform': 'rotate(' + (getPos.top - event.clientY) + 'deg)'
});
}
//for DEG "-" Top-Math.abs(DEG*2) for Deg "+" Top+(DEG*2)
}
});
$(document).mouseup(function() {
dragStatus = 2;
});
});?
Thanks for any help fixing this. Mainly an issue with the math, just don't know how I can fix this.
